You MUST pay attention to caps. (Another user has written that somewhere, but I think that's obvious...)

Indeed, transferring is not the most userfriendly procedure and unfortunately, we are losing more and more people who were playing Earthslicer due of this difficulty. Even switching from iOS6 to iOS 7 forces one to follow the procedure, as if you had got a new device. (I can only guess, that it has something to do with the unique ID needed for the game, which probably changed with the iOS update).